/*
 * Copyright (c) 2022. China Mobile (SuZhou) Software Technology Co.,Ltd. All rights reserved.
 * Lakehouse is licensed under Mulan PSL v2.
 * You can use this software according to the terms and conditions of the Mulan PSL v2.
 * You may obtain a copy of Mulan PSL v2 at:
 *          http://license.coscl.org.cn/MulanPSL2
 * THIS SOFTWARE IS PROVIDED ON AN "AS IS" BASIS, WITHOUT WARRANTIES OF ANY KIND,
 * EITHER EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO NON-INFRINGEMENT,
 * MERCHANTABILITY OR FIT FOR A PARTICULAR PURPOSE.
 * See the Mulan PSL v2 for more details.
 */

package com.chinamobile.cmss.lakehouse.common.utils;

import com.chinamobile.cmss.lakehouse.common.exception.BaseException;

import java.util.Map;
import java.util.Optional;
import java.util.UUID;

public class EngineUtils {
    public static String getEngineHome(String name, Map<String, String> env) {
        String homePath =
            Optional.ofNullable(env.get(name)).orElse(Optional.ofNullable(System.getenv(name))
                .orElse(Optional.ofNullable(System.getProperty(name)).orElse(null)));
        if (homePath == null) {
            throw new BaseException("Cannot found " + name + " in env and property!");
        }
        return homePath;
    }

    public static synchronized String generateAppName(String prefix) {
        long currentTime = System.currentTimeMillis();
        return String.format("%s-%s-%s", prefix, currentTime, UUID.randomUUID());
    }
}
